/* 顶部导航栏 */

.mainnav {
    width: 100%;
    height: 70px;
    position: fixed;
    background-color: rgba(0, 0, 0, .1);
}

.main_box .col-md-1 {
    padding: 15px 0 15px 25px;
}

.mainnav .main .main_box .col-md-1 a {
    width: 100%;
    height: 100%;
    display: block;
}

.main_box .col-md-2 button {
    margin: 20px 0;
    padding: 6px;
    border: 1px solid #ffffff;
    color: #ffffff;
    background-color: rgba(0, 0, 0, .1);
}

.main_box .col-md-9 ul {
    display: flex;
    justify-content: space-around;
}

.main_box .col-md-9 ul li {
    padding: 30px 20px 16px 20px;
}

.main_box .col-md-9 ul li:hover {
    border-bottom: 4px solid #ffffff;
}

.main_box .col-md-9 ul li a {
    text-decoration: none;
    color: #fff;
}


/* 头部 */

.header {
    background: url(../images/articleimg/top_banner4_1.png) no-repeat;
    background-size: 100% 100%;
    padding: 111px 0;
}

.hader {
    text-align: center;
    color: #ffffff;
}

.hader h2 {
    font-size: 42px;
}

.hader p {
    font-size: 16px;
}


/* 当前位置 */

li {
    list-style: none;
}

.location {
    overflow: hidden;
}

.location_box ul li a {
    color: #666666;
    text-decoration: none;
}

.location_box ul {
    margin-top: 15px;
    display: flex;
}

.location_box ul li .location_box_chanpin {
    color: #333333;
}


/* 关键词排名 */

.ranking h4 {
    font-size: 20px;
}

.ranking p {
    color: #989898;
}

.ranking p span {
    font-size: 12px;
    margin: 0 40px;
}

.ranking_txt {
    position: relative;
    top: 0;
    left: 0;
    padding: 50px 55px;
    color: #989898;
}

.left_top {
    position: absolute;
    top: 0;
    left: 0;
}

.right_top {
    position: absolute;
    top: 0;
    right: 0;
}

.left_bottom {
    position: absolute;
    bottom: 0;
    left: 0;
}

.right_bottom {
    position: absolute;
    bottom: 0;
    right: 0;
}

.ranking_content {
    padding: 50px 70px;
}

.ranking_content img {
    width: 520px;
    height: 337px;
    margin: 35px;
}

.ranking_content div {
    margin-top: 50px;
}

.ranking_content div p {
    margin: 5px 0;
}

@media(max-width:1200px) {
    .ranking_content img {
        display: none;
    }
}


/* 推荐文章 */

.right_box {
    margin-left: 20px;
    padding-bottom: 50px;
}

.right_content {
    border-bottom: 1px solid #eeeeee;
}

.right_content span {
    display: block;
    font-size: 18px;
    width: 100px;
    text-align: center;
    padding-bottom: 20px;
    border-bottom: 3px solid #468eff;
}

.right_content_txt {
    display: flex;
    justify-content: space-between;
    margin-top: 25px;
}

.right_content_txt img {
    width: 135px;
    height: 80px;
}

.right_content_txt_ri {
    margin-left: 10px;
}

.right_content_txt_ri p {
    width: 191px;
}

.right_content_txt_ri p:nth-child(2) {
    color: #989898;
}


/* 底部 */

.footer {
    padding-bottom: 30px;
    background-color: #22263d;
}

.footer_txt ul {
    padding-left: 180px;
    display: flex;
}

.footer_txt ul li a {
    color: #bbbbbb;
    text-decoration: none;
}

.footer_txt ul li {
    color: #bbbbbb;
    padding: 40px 10px;
}

.footer_cnt {
    display: flex;
}

.footer_cnt div:nth-child(1) {
    padding-left: 180px;
    padding-top: 20px;
}

.footer_cnt div:nth-child(2) {
    padding-top: 30px;
}

.footer_cnt div:nth-child(2) ul li a {
    text-decoration: none;
    color: #bbbbbb;
}

.footer_cnt div:nth-child(3) {
    height: 80px;
    width: 1px;
    margin: 0 80px;
    background-color: #444444;
}

.footer_cnt div:nth-child(4) {
    text-align: center;
    color: #bbbbbb;
}

.footer_cnt ul {
    display: flex;
}

.footer_cnt ul li {
    padding: 0 20px;
}

.footer_bottom {
    display: flex;
    justify-content: center;
    color: #bbbbbb;
}


/* 底部显示和隐藏 */

@media(max-width:768px) {
    .footer {
        display: none;
    }
}

@media(min-width:768px) {
    .footer {
        display: none;
    }
}

@media(min-width:1200px) {
    .footer {
        display: block;
    }
}